AirHint found the following cheapest return flights from Singapore (SIN) to Istanbul (IST) in April 2026 (see full year).

Return flights

12 Apr - 19 Apr	AirAsia
15 Apr - 22 Apr	Gulf Air
09 Apr - 16 Apr	Gulf Air
10 Apr - 17 Apr	Gulf Air
13 Apr - 20 Apr	Gulf Air
26 Apr - 04 May	AirAsia
06 Apr - 11 Apr	Gulf Air
16 Apr - 19 Apr	AirAsia
07 Apr - 20 Apr	AirAsia
15 Apr - 22 Apr	Turkish Airlines	direct
07 Apr - 16 Apr	Turkish Airlines	direct
29 Apr - 11 May	Turkish Airlines	direct
26 Apr - 04 May	Turkish Airlines	direct
10 Apr - 01 May	Gulf Air
02 Apr - 20 May	Gulf Air
30 Apr - 03 May	Gulf Air
24 Apr - 03 May	Gulf Air
26 Apr - 03 May	Gulf Air
25 Apr - 03 May	Gulf Air
28 Apr - 05 May	Gulf Air

Also check the deals for one-way flights from Singapore to Istanbul in April.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Singapore to Istanbul in April from 400€

Return flights